a.To avoid using the machine on the abdomen of the pregnant women or women in menses.

b.To avoid using the machine on around the parts under which metal,plastic or silicon wee buried.

c.To avoid using the machine on around the medical and electric instrument,such as the hearing aid,heart starter, mechanical heart,etc.

d.To avoid using the machine on the epileptic and those in bad health e.To avoid using the machine on the wound aroung the treatment area and the areas with metals inside of the body.

f.To avoid using the machine on people who has high blood pressure or diabetes or serious skin diseases or heart diseases, or who is sensitive to electric current,or who is reveiving hormone treatment.